Slotting-machine.



PATENTEDIYAPR. 19, 1904.

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No. 757,562. PATENTBD-APR. 19, 1904. M. & H. E. MORTON.

SLOTTING MACHINE.

APPLICATION FILED JULY 29. 1902.

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SLOTTING MACHINE.

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Patented April 19, 1904.

" UNITED STATES PATENT OFFICE.

MATTHEW MORTON AND HENRY E. MORTON, OF MUSKEGON HEIGHTS,

MICHIGAN.

SLOTTING-MACHINE.

SPECIFICATION forming part of Letters Patent N0. 757,562, dated April19, 1904.

Application filed July 29, 1902. Serial No. 117,464. (No model.)

To all whmn it may concern.-

Be it known that we, MATTHEW MORTON and HENRY E. MORTON, citizens of theUnited States, residing at Muskegon Heights, county of Muskegon, Stateof Michigan, have invented a certain new and useful Improvement-inSlotting-Machines, of which the following is a specification, referencebeing had to the accompanying drawings, which form a part of thisspecification.

Our invention has for its object to provide an improvedslotting-machine, the same being more particularly designed for cuttingout the material and finishing the openings in solid: endconnecting-rods, double-throw cranks, and other work of this nature,although we do not limit ourselves solely thereto.

Our invention consists of the construction, combination, and arrangementof devices hereinafter described and claimed, and illustrated in thedrawings,.in which Figure l'is a view in side elevation, parts Fig. :2-is a View in elevation at right angles to Fig. 1. Fig. 3 is a plan viewof the machine. Fig. i. is a View in vertical section showing partsinelevation. Fig. 5 is a partial vertical section on the line 5 5, Fig.3, showing features of the invention.

' Fig. 6 is a partial vertical section on the line 6 6, Fig. 5. Fig. '7is a detail view in section of certain features of the automaticfeed-gear and pawl. Fig. 8 is a view of the same in side elevation,parts being broken away. Fig.

9 is a view in side elevation showing the side opposite that shown inFig. 1, certain features shown below the turn-table in Fig. 1 beingomitted. Fig. 10 is a view in rear elevation showing theside oppositethat illustrated in Fig. 2, omitting the truck Z and features mountedthereupon.

In certain kinds of heavy work, as incutting out the material orslotting and finishing e carry out our invention as follows:

-In the drawings, a represents a turn-table; b, any suitable bed servingas a circular track, said tracksupported upon a foundation 0. Theturn-table is provided with'a gear d. Upon the foundation is supportedashaft 6, provided with a pinion f, meshing with-a gear g upon a shaft7L, said shaft provided with a pinion i, meshing with the gear (1. Theshaft 6 is shown provided with a hand-wheel 7' to actuate the same andrevolve the turn-table.

Upon the foundation care located tracks is, upon which is mounted atruck Z, provided with wheels in to travel upon said tracks. Upon thetruck is a carriage n, arranged to travel transversely of the travel ofthe truck, the truck being provided with tracks 19, supporting saidcarriage. By means of this truck and carriage we are enabled to feedthework to'the machine in either directionz'. a, to-

ward or from the machineand in a transverse direction. The work isindicated at q. The work may be held upon the carriage 12, in anysuitable manner, as by a clamping device 1, and may be verticallyadjusted thereupon in any desired manner, as by an adjusting-screw 2.

.Upon the turn-table is located a fixed supporting frame or base r,provided with a bed 8. A. lateral feed-table'tis mounted upon the beds.Upon the table t is a cross feeding-table 10, the upper side of which iscircular and provided with a circular T-slot 23. Upon this crossfeeding-table is movably mounted a revolving chuck or mechanism to holdthe work, said chuck being provided with a rotatable table 11 and withadjustable jaws 12. The table 11 is engaged upon the table 10 by meansof bolts entering the T-slot thereof, as shown. The jaws 12 areadjustable for the purpose of receiving larger or smallerconnecting-rods. By loosening the bolts which secure the table 11 uponthe table 10 the table 11 may be revolved in either direction. Acutter-bar is indicated at 20, preferably engaged in a crosshead w,provided toward its lower end with a rack-bar Certain features ofconstruction embraced in our improved connecting-rod-slotting ma-.

chine were embodied in United States Letters I electric motor belteddirect.

Patentgranted February 7, 1899, N o. 618,894, such as a tilting frame 3,having a jointed engagement toward its base with the fixed frame orcolumn 7', as at 4. The particular construction and arrangement of thefixed frame and of the tilting frame, with their related parts, are setforth in the Letters Patent above referred to.

'With this special machine it is necessary for the cutter toreciprocate, and to provide a reciprocating motion a suitable train ofgears '10 and a belt-shifting device are supplied, said train of gearsbeing driven by any suitable source of power, as a motor 2:, the trainof gears actuating said cutter-bar.

Referringto Fig. 10, the b'ack side of the column 1' is shown providedwith three pulleys mounted upon a shaft 52, the outer one representing atight pulley which is keyed to the shaft, which is used for the purposeof driving the machine in the'cut. The intermediate pulley is loose. Theinner pulley for driving on the return stroke is attached to the hub ofa pinion 49, which meshes directly into the main driving-gear of themachine and revolves freely on shaft 52. When power is applied to thepulley for driving the machine on the cut, it is transferred throughshaft 52 to a pinion 50, from thence to an intermediate gear 54, throughto a pinion .51, thence on to the main driving-gear of the machine. Whenthe cutting stroke is completed, by the employment of reverse mechanism44, working in conjunction with tappets on circular disk 45 andreversing dog or cam 48 and connections,

the belt-shifter is made to throw the belt to the oppositedriving-pulley, the power then being applied directly to the gear 49upon the driving-shaft 6, thence to the main drivinggear of the machine,and'the cutter-bar, crosshead, &c., are made to travel in the oppositedirection with a quick return ratio, as is represented by the diflerencein the diameters of the pinion 50 and intermediate gear 54. 47represents a friction-clutch for stopping and starting the machine atany part of its stroke.

The preferred power for this machine is an The main driving-gear isattached to the shaft, which is provided with a pinion which engages arack-bar or toothed portion y, secured to the crosshead, in whichthereciprocatory cutter-bar w is preferably engaged and by which it iscarried in its reciprocatory motion. A pinion 5 upon the driving-shaft 6meshes with the bar y, said shaft being actuated by the system of gearsu. I

Upon the bed of the tilting frame 3 is supported a post 7, toward thetop of which is engaged an arm 8, projecting forward against thecutter-bar to form a support for the upper end of said bar to preventthe cutter-bar from springing away from the work. This arm may be madeadjustable in any suitable manner, as indicated in the patent abovereferred to, while the post 7 may also be made adjustable, as indicatedin said patent.

The work is laid in a horizontal position and the slotting mechanism isrevolved on the foundation 6, so that the cut may be made in any desireddirection, the line of work q lying parallel with tracks is, therebyeflecting a great saving of room, as well as increasing the efficiencyin operation and adjustment. It will be understood that the pump 19 isarranged to take the fluid for lubricating the cutter, and by means ofpipes, 620., it forces the fluid on the cutterwhile making itsoperation, receiving its power from an eccentric on the intermediategear-shaft 46. The arrangement is such that the oil or fluid is allowedto run into receiving-box 20, and the pump takes it from this box andplaces it on the cutter. It will also be understood that the cutter-baris movable with the tilting frame, whereby said cutter-bar may be tiltedto any desired angle, although for the particular work for which thismachine is designed it is not necessary to have any given amount ofadjustment.

An automatic cutterbar-relieving mechanism is provided in the form of aneccentric and shaft 53, the same being actuated by reversing dog or cam48 and intervening connections, the main feed-lever 26 being journaledon the upper end of the eccentric and shaft 53. As the dog or cam 48moves in either direction to actuate belt-shifter the eccentric-shaft 53makes a portion of a revolution, whereby lever 26 is withdrawn fromcontact with tilting frame 3. This allows the cutter to drop back on itsreturn stroke, thereby preserving its edge, and when the machineautomatically reverses for its cutting stroke the eccentric-shaft 53 isdrawn in the opposite direction, forcing lever 26 and tilting frame 3and cutter-bar w to the desired position to take its cut, there being abar 24 connected at one end to the lever 26, and its other end isadapted to bear against the back of the cutter-bar, as shown in Fig. 4,

The provision of the lateral feed-table t, the cross feed-table 10, andthe revolving table 11 for the chuck enables us to adjust the chuck inany desired position. These tables are fed either automatically or byhand, as will appear fromthe following description: Beneath the table 2,is a threaded hanger 13, with which a threaded shaft or screw 13engages, as shown in Figs. 5 and 6. On the end of this screw 18 isabevel-gear 14, which meshes with a crank being connected to afriction-clutch 18 by a pitman 2-8, as shown in Fig. 1. The clutch 18 isoperated by the driving mechanism in the usual way, and through theadjunctive mechanism above described the screwshaft 13 feeds the work tothe cutter.

In order to i provide a progressive or stepby-st-ep feed for the work,which feed takes place at the completion of the cutting stroke,

journaled loosely on a collar 31 on the shaft 2-9. By thisconstruction-it will be seen that the table 25 may be fed eitherautomatically or by hand, and the latter operation will not affect theposition of the shaft 29 or its operating means, since the pawl 21 maybe turned so as to slide around the ratchet, and then by applying acrank or wrench to the angular end of the shaft 27 the feed-screw 13 maybe rotated. Similar mechanism is employed for feeding the work in adirection at right angles to the movement imparted by the feedscrew 13,the movement being imparted to the table 10. The feed-screw 22- for thistable has one end secured in the table, as seen in Fig. 5. The gear 35is detachably mounted on the shaft 27 and may be removed and placed on ashaft-15, when it will mesh with the gear 31, and the shaft 15 will thenbe driven in the same manner as the shaft 27. This shaft 15 extendsthrough the bed 8 and has a bevelgear connection 16 at its opposite endwith a shaft 36, journaled in a bearing 42. (Shown in Figs. 1 and 3.)This shaft has a bevelgear which meshes with a bevel-gear 37 on on thefeed-screw 22, but is stayed against longitudinal movement by a bandtliconnected to the frame or bed 8, whereby the feedscrew is movedlongitudinally through the gear 41 and the table 10 shifted. It will beapparent that the table 10 may be fed by hand by applying a crank orwrench to the angular end of the shaft 15. i g

It will be evident that by the provision of the feed-screws 13 and 2:2the cross-plate 10 is adjustable in both directions, while by means ofthe hand-wheel j the revolving plate a may be turned into any desiredposition. By means of the truck land the carriage a the work may beoperated in either direction.

19 represents an oil or water pump, and 20 represents an oil or waterreservoir.

The mode of operation is as follows: A hole is drilled through the solidend of the rod to be machined in two opposite corners. These holes aresquared with a special bar and cut.

ter for the purpose, these openings being sufficient toallow thecutter-bar and cutter w to pass through them. Thecutter in this case isenough wider than the bar to give perfect. clearance to the bar.

The out is then taken across one end of the opening. The machine is thenadjusted by hand back to the place of the beginning. The bolts in thecircular plate a little greater width than the bar is made along theside of the connecting-rod. After this operation the cutter-bar iswithdrawn, the circular plates loosened, the machine revolved byhand-wheel another ninety degrees and adjusted, Then the cutter-bar maybe placed throughthe hole prepared for this purpose, and a cut is thentaken down the end of the opening. After this operation it is returnedby hand and. the bolts loosened'and handwheel 3' revolved, so as turnthe machine another ninety degrees, the cutter-bar replaced andadjusted, and a cut taken in this direction to the original point ofbeginning,

thereby having cut out a solid chunk, of metal.

and leaving a reasonably perfect opening in the end of the work Otherforms of tools may be substituted by which other classes of work may bemachined with this machine.

The object of the adjustable carriage located on track is will bereadily seen is to sup port the end of the work q, and in the operationof feeding the only movementthe work Q requires is to feed eitherlaterally or to and from the cutter, and the supporting-carriage andtrack being self-adjusting in either direc tion makes it unnecessary tomaterially change the position of the work q while in its operation.

For purpose of illustrating, if the work were to be machined in the oldway it would necessitate the moving of the work in the differentpositions hereinbefore referred to and if the work were eighteen feetlong would take up a space covered by eighteen feet radius. Thisillustrates clearly the advantage of having the work remaining in oneposition and overcomes the necessity of occupying so much room in doingthis class of work.

57 denotes the end of the connecting-rod or work, and 58 binder-blocksfor the same.

What we claim as our invention is 1. In a slotting-machine thecombination of atur'n-table, abase supported thereupon, hori- IIOzontally-adjustable mechanism for holding the work carried by said base,and a reciprocatory cutter carried by said base.

2. In a slotting-machine the combination of a supporting-foundation, aturn-table supported upon said foundation, a supporting-base locatedupon said turn-table, a reciprocatory cutter carried by said base anddriving mechanism to actuate said cutter, said driving mechanism locatedbelow the turn-table.

3. In a slotting-machine the combination of a turn-table, a supporttherefor, a supportingbase located upon the turn-table, a reciprocatorycutter carried by said base, horizontally adjustable work feedingmechanism mounted upon said base, and means upon said support gearedwith the turn-table to actuate the same.

4. In a slotting-machine the combination of a support having acountersunk portion or well, a turn-table carried by said support, asupporting-base upon the turn-table, cutter mechanism carried by saidbase, revolving mechanism to engage the work mounted upon said base anddriving mechanism locatedin the countersunk portion or well of thesupport to drive the cutter mechanism.

5. In a slotting-machine the combination of a turn-table, asupporting-base carried by the turntable, an additional turntable at theupper end of said base to engage the work, and cutter mechanism carriedby said base, whereby the cutter mechanism may be turned and operatedwithout moving the work.

6. In aslotting-machine the combination of a turn-table, reciprocatorycutter mechanism, means to adjust the cutter mechanism relative to theturn-table, and means to carry one end of the work, said means movabletoward and from the cutter mechanism, and in a transverse direction.

7. In a slotting-machine the combination of a turn-table having avertical axis, horizontally adjustable cutter mechanism carried thereby,a truck movable toward and from the cutter mechanism, and a carriagemounted upon said truck to support the work movable in a directiontransverse to the movement of the truck.

8. In a slotting-machine the combination of a turn-table, a basethereupon, a reciprocatory cutter carried by said base, alaterallyadjustable feed-table upon the upper portion of the base, across feed-table adjustable upon the lateral feed-table in a directiontransverse to the movement of the lateral feed-table, a revolving plateupon thecross feed-table, and

means for holding the work upon the revolv- MATTHEW MORTON. HENRY E.MORTON.

Witnesses:

J OHN S. BALL, WM. ROBINSON.

